prashantkalkar / terraform_rolling_deployments

Terraform script to implement rolling deployment for Autoscaling group and ELB

terraform_rolling_deployments

Terraform script to implement rolling deployment for Autoscaling group and ELB

Nginx AMI

Ami folder contains the packer configuration to create the nginx AMI. Use following command to create the AMI (Use default if you are just using the default profile)

packer build -var aws_profile=<name_of_your_aws_profile> nginx.json

Use the AMI in the Terraform code.

Update the terraform launch configuration to include the AMI Id created with above packer command.

Create the infrastructure with Terraform for the first time

terraform plan -out tfplan

terraform apply tfplan

Simulate new application version release

Create a new AMI to represent new version of the application.

packer build -var aws_profile=<name_of_your_aws_profile> nginx.json

Update terraform with new AMI just created.

Execute terraform plan

terraform plan -out tfplan

This will offer the changes that will perform the rolling deployment.

Apply the changes to see the rolling deployment in action

terraform apply tfplan